Hi @robinchats and welcome to Mayo Clinic Connect. I have heard of the problem of a wrong size spacer and/or device a lot since moderating the bones joints and muscles group and total knee replacements. You will see I moved your comment to a discussion about revision surgery problems so you can connect with people who have had difficulties after their procedures.

When you were in PT did your therapist ever mention weight being the issue for your pain? I feel like that would have been mentioned early on if that was the case.